An amazing collection of photos captured the early days of the Tay Road Bridge.
The images were unearthed from the Dundee City Archive and show exactly how the crossing was built in the 1960s.
The mixture of black and white and colour pictures show the actual construction itself and how the Dundee end of the bridge was developed to accommodate the new road layout.
The bridge was designed by William A Fairhurst and took three years to build between 1963 and 1966 at a cost of £4.8m.
The main contractor was Duncan Logan (Contractors) Ltd of Muir of Ord.
The technical specification of the crossing makes for interesting reading.
It is 2250m in length with the main structure comprising 42 spans - the majority of which are 55m in length increasing to 76.3m at the four navigation channels and reducing to 24.4m at the Dundee end.
The roadway comprises dual carriageways 6.7m wide with a 3m wide central walkway/cycleway that rises at a gradient of 1 in 81 along its length.
It starts from a height of 9.7m above sea level at the Dundee end to 38m at the Fife end to provide clearance at the navigation channels.
Concrete piers in the river support twin concrete columns of parabolic shape that vary in height from 5.5m at the Dundee end to 30.5m at the Fife end.
The twin columns support twin hollow steel box girders 3.65m wide and 3m deep, which in turn support a 300mm thick composite concrete slab carrying the roadway.
At the Dundee end of the main structure traffic was collected and discharged via four elevated curved and spiral reinforced concrete ramps supported on concrete columns with a total elevated length of approximately 500m.
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